"We've had a puncture," explained Harold, "and we want to know whether you have a jack that we could borrow?"

The man shook his head.

"Never had no use for one," he replied.

Their faces fell; but as they turned to leave, the old man straightened up, and called out,

"Hold on a minute! What kind of car you got?"

"A Ford," Harold told him.

"There's your jack, then," he said, pointing to a pile of lumber in one corner of the room; "that there twelve-foot beam!"

"How?" queried the boy.

In reply, the man worked his arms up and down, as if he were operating a lever.